Brake.



Patentd Apr. 2, mm.

H. L. F. TR EBERT.

BRAKE.

(Application filed Dec. 30, 1899.)

2 Sheets-Si1eet I.

(No Model.)

4% a E b .1 ad ad w 5 N I 7 2 Sheets-Sheet 2.

No. 67I,409. Patented Apr. 2, l90l. H. L. F. TBEBERT.

B R A K 5.

(Application filed Dec -30, 1899.)

(N 0 Model.)

WITNESSES:

Ens co. PHDYO-LITHO. WASHINGTON. u c.

NITED STATES PATENT OFFICE.

HENRY L. F. TREBERT, OF SYRACUSE, NEW YORK.

BRAKE.

SPECIFICATION forming part of Letters Patent No. 671,409, dated April 2,1901.

Application filed December 30,1899. Serial No. M2035. (No model.) i

To otZZ whom it may concern:

Be it known that I, HENRY L. F. TREBERT, of Syracuse, in the county ofOnondaga and State of New York, have invented certain new and usefulImprovements in Brakes, of which the following is a specification.

My invention relates to improvements in vehicle-brakes, and has for itsobject the production of a mechanism for the desired purpose which isparticularly simple in construction, strong and durable in use, andhighly eficient in operation; and to this end it consists in thecombination, construction, and arrangement of the component parts of avehicle-brake, as hereinafter fully described, and pointed out in theclaims.

In describing this invention reference is had to the accompanyingdrawings, forming part of this specification, in which like lettersindicate corresponding parts in all the views.

Figure 1 is an elevation, partly in section, of myvehicle-brake,adjacent parts of a vehicle-frame being indicated bydotted lines. Figs. 2 and 3 are vertical sectional views taken,respectively, on lines 2 2 and 3 3, Fig. 1. Fig. 4 is a sectional viewtaken on line 44, Fig. 2,

the chain shown in the preceding figures be ing omitted. Figs. 5, 6, and'7 are isometric views, respectively, of the non revoluble brake member,one of the engaging parts of the driven member, and one of theconnecting members of my invention.

My vehicle-brake comprises a driven member A, a driving member B, anon-revoluble brake member 0, and means for locking the driven anddriving members together and for cooperating with the driving and brakemembers for retarding the revolution of the driven member. As preferablyconstructed the driven member A consists of the hub of the driving-wheelof a vehicle, although it may consist of any other desirable revolublepart.

Said driven member is mounted upon any suitable bearing a and encirclesan axle a, secured by any desirable means to the vehicle-frame 0. Oneend of the driven member A is provided with engaging parts a a havingtheir adjacent sides or ends formed with frictional engaging surfaces01, a and with separated surfaces a a interposed between the surfaces01/ 01 and arranged substantially parallel therewith. Said engagingparts a a are here illustrated as consisting of collars or flangesscrewing upon threaded surfaces 0. a

arranged side by side upon the main portion said main portion or andengaged with the 6o contiguous face of the engaging part 0. One of theengaging parts a at, or, if desired, any other suitable portion of therevoluble memberA, is provided with a peripheral face 00 ar rangedbetween the surfaces a 01 and having portions thereof extended outwardlyfrom the axis of said member A toward their front ends and thecontiguous portions of the inner face 19 of the driving member B,presently described. myinvention said peripheral face (1 is formed uponthe engaging part a and the portion of said engaging part provided withthe surface a is formed detachable from the remaining portion of saidengaging part. Said engaging parts when constructed as described arerigid with the remaining or main portion of the driven member A and arefirmly secured in position without liability of detachment.

The driving member B is usually revolubly mounted on one end of thedriven member A, between the engaging surfaces a 0.. Its periphery issuitably formed for engaging a sprocket-chain B, and its innerportion isprovided with a face I) and end engaging surfaces Z) W. The face I) isgenerally formed with a groove of angular cross-section and encirclesthe face a of the driven member, being substantially concentric withsaid face 0, The surface I) is substantially fiat and cooperates withthe surface 01, of the driven member A, and the surface 6 is providedwith portions b inclining from their rear ends toward the surface a.

The brake member 0 surrounds a portion of the driven member A, isinterposed between the surface a of the engaging part a and the drivingmember B, and is prevented from revoluble movement bya shoulder c orother suitable means engaged with the vehicle-frame a One side of thebrake member 0 is provided with a lateral extension or tongue 0'encircling the contiguous portion In the preferable construction of'7oof the engaging part a and with an engaging surface 0 engaging orcooperating with the surface a". The other side of said brake member isprovided with an extension or tongue 0 encircling the contiguous portionof the driving member and with an engaging face 0 usually formed with agroove of an-' gular cross-section.

The means for locking the driven and drivin g members together ispreferably composed of clutch members D and aconnecting member d. Theclutch members D usually con-- sist of rolling balls, are interposedbetween the peripheral face 0, of the driven member faces a a of thedriven member A and in terposed between said surfaces a a which formannular shoulders on the driven member A for preventing endwise movementof the connecting member. Said connecting member moves or actuates allof the clutch membe rs D simultaneously and is usually provided with alaterally-extending flange, which is formed of greater diameter than oneof the surfaces a a and is provided with openings d for receiving theclutch members and interposed arms for engaging said clutch members.

The means for cooperating with the driving and brake members to retardthe revoluble movement of the driven. member A is usually composed ofclutch members E and a connecting membere. The clutch members Epreferably consist of rolling balls, which are engaged with the surfaces19 cof the driving and brake members B O, are movable substantiallylengthwise of the axis of the member A in the groove in the face 0 intotheir operative position as the member B is rotated backwardly,andassume their inoperative position as said member is rotated forwardly.When the clutch members E are moved into their cooperative position bythe backward movement of the driving member B, said clutch members andthe driving and brake members transmit substantially equal pressure tothe engaging parts a a in opposite directions substantially lengthwiseof the axis of the driven and driving members, and thereby retard therevolution of said member A without transmitting strain to the bearingstherefor. The connecting member 6 serves to move or actuate all of theclutch members E simultaneously and preferably consists of a ringinterposed between contiguous surfaces of the driving and brake membersB C and formed with openings e in its peripheral portion for receivingthe members E- and interposed arms for engaging said clutch members.-

The construction and operation of my vehicle-brake will now beunderstood upon reference to the foregoing description and theaccompanying drawings, and it will be obvious to those skilled in theart that more or less change may be made in the component parts of saidbrake without departing from the spirit of my invention.

Having thus fully described my invention,

vWhat I claim as new, and desire to secure by .Letters Patent, is- A andthe inner face I? of the driving mem- 1. In a vehicle, the combinationof two revoluble members, one being provided with two engaging surfacesand one being movable relatively to the other, said members being pro- 1vided with substantially concentric en gaging f faces, means between thesubstantially concentric engaging faces for locking the revolublemembers together,a non-revoluble brake member surrounding a portion ofone of the revoluble members and interposed between said two engagingsurfaces, and rolling clutch members movable lengthwise of the axis of'together,a connecting member for moving the clutch memberssimultaneously, a nonrevoluble brake member surrounding a portion of oneof the revoluble members, and clutch members movablesubstantiallylengthwise of the axis of the revoluble members andcooperating with the brake member and one of the revoluble members forretarding the revolution of the other ofsaid revoluble members,substantially as and for the purpose specified.

3. In a vehicle, the combination of two revoluble members, one beingmovable relatively to the other, said members being provided withsubstantially concentric engaging faces, rolling clutch members betweensaid engaging faces for locking the revoluble members together, aconnecting member for moving the clutch members simultaneously, anonrevoluble brake member surrounding a portion of one of the revolublemembers, clutch members movable substantially lengthwise of the axis ofthe revoluble members and cooperating with the brake member and one ofthe revoluble members for retarding the revolution of one of therevoluble members, and

a connecting member for moving the latter clutch members simultaneously,substantially as and for the purposes set forth.

4. In a vehicle, the combination of two revoluble members, one beingprovided with two engaging surfaces and one being movable relatively tothe other, said members being provided with substantially concentricengaging faces, rolling clutch members between the substantiallyconcentric engaging faces for locking the revoluble members together, aconnecting member for moving the clutch members simultaneously, a nonrevoluble brake member surrounding a portion of one of the revolublemembers and interposed between said two engaging surfaces, rollingclutch members movable substantially lengthwise of the axis of therevoluble members and engaging the brake member and one of the revolublemembers for transmitting substantially equal pressure to said twoengaging surfaces in opposite directions substantially lengthwise of theaxis of the revoluble members and thereby retarding the revolution ofone of said revoluble members, and a connecting member for moving thelatter clutch members simultaneously, substantially as and for thepurpose described.

5. In avehicle, the combination of a driven member provided with twoengaging surfaces and a peripheral face between said surfaces, a drivingmember mounted on the driven member and provided with an inner facesurrounding said peripheral face and with end engaging surfaces, one ofsaid end engaging surfaces being engaged with one of said two engagingsurfaces of the driven member, rolling clutch members for engaging saidperipheral face of the driven member and said in ner face of the drivingmember, a non-revoluble brake member surrounding a portion of saidperipheral face and interposed between the other of said two engagingsurfaces of the driven member and the adjacent engaging end surface ofthe driving member, and rolling clutch members movable substantiallylengthwise of the axis of the revoluble members and engaging thecontiguous surfaces of the driving member and the brake member,substantially as and for the purpose described.

In testimony whereof I have hereunto signed my name, in the presence oftwo attesting witnesses, at Syracuse, in the county of Onondaga, in theState of New York, this 12th day of April, 1899.

HENRY L. F. TREBERT.

Witnesses:

ARTHUR E. PARSONS, K. H. THEOBALD.

